Control unit



FIG. 1 is a front perspective view of the control unit;

FIG. 2 is a front view of the control unit;

FIG. 3 is a right-hand side view of the control unit;

FIG. 4 is a top view of the control unit;

FIG. 5 is a left-hand view of the control unit; and,

FIG. 6 is a bottom view thereof.

The rear of the control unit forms no part of the claimed design. 

The ornamental design for a control unit, as shown and described. 